1 ; REQUIRES: object-emission
3 ; RUN: %llc_dwarf < %s -filetype=obj | llvm-dwarfdump -debug-dump=line - | FileCheck %s
4 ; RUN: %llc_dwarf < %s -filetype=asm | FileCheck --check-prefix=ASM %s
6 ; If multiple line tables are emitted, one per CU, those line tables can
7 ; unambiguously rely on the comp_dir of their owning CU and use directory '0'
10 ; CHECK: .debug_line contents:
11 ; CHECK-NEXT: Line table prologue:
12 ; CHECK-NOT: include_directories
13 ; CHECK: file_names[ 1] 0 {{.*}} a.cpp
14 ; CHECK-NOT: file_names
16 ; CHECK: Line table prologue:
17 ; CHECK-NOT: include_directories
18 ; CHECK: file_names[ 1] 0 {{.*}} b.cpp
19 ; CHECK-NOT: file_names
21 ; However, if a single line table is emitted and shared between CUs, the
22 ; comp_dir is ambiguous and relying on it would lead to different path
23 ; interpretations depending on which CU lead to the table - so ensure that
24 ; full paths are always emitted in this case, never comp_dir relative.
26 ; ASM: .file 1 "/tmp/dbginfo/a{{[/\\]+}}a.cpp"
27 ; ASM: .file 2 "/tmp/dbginfo/b{{[/\\]+}}b.cpp"
29 ; Generated from the following source compiled to bitcode from within their
30 ; respective directories (with debug info) and linked together with llvm-link
42 ; Function Attrs: nounwind uwtable
43 define void @_Z4funcv() #0 {
48 ; Function Attrs: uwtable
49 define i32 @main() #1 {
51 call void @_Z4funcv(), !dbg !20
55 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
56 attributes #1 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
58 !llvm.dbg.cu = !{!0, !8}
59 !llvm.module.flags = !{!16, !17}
60 !llvm.ident = !{!18, !18}
62 !0 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
63 !1 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo/a")
66 !4 = !DISubprogram(name: "func", linkageName: "_Z4funcv", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: void ()* @_Z4funcv, variables: !2)
67 !5 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo/a")
68 !6 = !DISubroutineType(types: !7)
70 !8 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !9, enums: !2, retainedTypes: !2, subprograms: !10, globals: !2, imports: !2)
71 !9 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo/b")
73 !11 = !DISubprogram(name: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !9, scope: !12, type: !13, function: i32 ()* @main, variables: !2)
74 !12 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo/b")
75 !13 = !DISubroutineType(types: !14)
77 !15 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
78 !16 = !{i32 2, !"Dwarf Version", i32 4}
79 !17 = !{i32 1, !"Debug Info Version", i32 3}
80 !18 = !{!"clang version 3.5.0 "}
81 !19 = !DILocation(line: 2, scope: !4)
82 !20 = !DILocation(line: 3, scope: !11)
83 !21 = !DILocation(line: 4, scope: !11)